Can a polygon be converted to a multipolygon in Python?
If you also need to fill the holes that arise from touching Polygons inside your MultiPolygon, the following should work:
How to expland a multipolygon Dataframe in Python?
Each row containing a multi-part geometry will be split into multiple rows with single geometries, thereby increasing the vertical size of the GeoDataFrame.
How to iterate over a polygon in shapely?
According to https://shapely.readthedocs.io/en/stable/manual.html#collections-of-polygons: For a MultiPolygon you can iterate over its Polygon members via iterating via in or list () or explicitely using its geoms property. Collect all the rings and you have the lines.
How to wrap a polygon in a list?
You can wrap the polygon in a list and pass that as an argument to the MultiPolygon constructor. Thanks for contributing an answer to Geographic Information Systems Stack Exchange! Please be sure to answer the question. Provide details and share your research!
How to get the exterior coordinates of a shapely multipolygon?
In order to get the exterior coordinates I need to convert a shapely MultiPolygon to a Polygon. I do it like this:
When is the result of unary _ Union a polygon?
1) If the two polygons intersects the result of union or unary_union (in red) is a Polygon therefore you can computes the exterior 2) If the two polygons are disconnected, the result is necessary a MultiPolygon (in red with two polygons)
How to separate a polygon into a geometry?
I would like to perform an operation that separates each polygon into a geometry as shown in the figure above, but resulting in several polygon objects, something equivalent to this: How can i do this using the sf package?
How to convert multipolygon to single in PostgreSQL?
I used ST_DUMP to convert a table of multipolygon geometries in PostgreSQL to a new table with polygon geometries and other columns of data. Update: I think this could be accomplished much easier with this query.
Is it possible to import a shape file containing multipolygons in PostGIS?
Is it possible to import a shape file containing multipolygons into single polygon in PostGIS? Whenever I try importing a shape file of a polygon, it is stored as a multipolygon (as opposed to a single polygon) in a geom column.